Aluminum alloy.



@FIC.

WILLIAM A. MCADAMS, OF BAY SHORE, NEW YORK.

ALUMINUM ALLOY.

No Drawing.

To all whom it may concern Be it known that I, WVILLIAM A.,NICADAMS. acitizen of the United States, and resident of Bay Shore, in the countyof Suflolk and State of New York, have invented a new and usefulImprovement in Aluminum Alloys, of which the following is aspecification.

My invention relates to an aluminum alloy with the object in view ofproviding a yery soft alloy suitable for making metal oil.

With this end in view, my invention con sists of an aluminum alloycomposed of aluminum, cadmium and tin, in which the amount by weight ofcadmium exceeds the amount of tin and the amount by weight of aluminumexceeds the amount of cadmium. These several elements are preferablycombined in substantially the following proportions by weight, namely,one hundred parts aluminum, thirty parts cadmium and five parts tin. Inpractically combining these metals, a portion of the aluminum is meltedand raised to a heat sufiicient to fuse the cadmium, the cadmium is thenintroduced and after the mass has been somewhat cooled, the tin isintroduced, great care being taken to thoroughly agitate the mass duringthe introduction of the several ele- Specification of Letters Patent.

Application filed April 15, 1914.

Serial No. 832,052.

ments. The mass may then be poured into the form of ingots to be shippedto points Where it is to be used or to be submitted to the rollingaction to reduce it to foil. It is very soft and may be rolled into thinsheets which may be manipulated similar to the manipulations of What islmown in the art as tin foil.

\Vhat I claim is:

1. An aluminum alloy composed of aluminum, cadmium and tin, in which theproportion of cadmium exceeds by weight the proportion of tin and theproportion of aluminum exceeds by weight the proportion of cadmium.

2. An aluminum alloy composed of aluminum, cadmium and tin combined insubstantially the following proportions by weight, namely, one hundredparts aluminum, thirty parts cadmium and five parts tin.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two witnesses, this 14th day of April, 1914.

WILLIAM A. MoADAMS.

Witnesses:

F. GEORGE BARRY, LIDA M. EGBERT.

Patented Dec. 15, 1914.

